What color is #3BCDDA?

#3BCDDA is a medium cyan. In RGB it is rgb(59, 205, 218), and in HSL hsl(185, 68%, 54%).

Is #3BCDDA accessible as text?

On white, #3BCDDA has a contrast ratio of 1.92:1 (fails WCAG AA for body text); on black it is 10.93:1 (passes). For text placed on #3BCDDA, use black for the best readability.

What is the closest Tailwind color to #3BCDDA?

The nearest Tailwind CSS token is cyan-400 (#00D3F2).

What colors go well with #3BCDDA?

#3BCDDA pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #D9473A. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #3BCDDA below.

Is #3BCDDA good for buttons?

#3BCDDA works well for buttons and highlights, but use black text on #3BCDDA — white text only reaches 1.92:1, below the 4.5:1 needed for normal-size labels.

Is #3BCDDA the same as CSS darkturquoise?

No — #3BCDDA is not the CSS named color darkturquoise, but darkturquoise (#00CED1) is the closest CSS named color.

#3BCDDA Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #3BCDDA

Not just a swatch — here's how #3BCDDA works with other colors. Named schemes with #3BCDDA in its natural role, and a note on why the supporting colors balance it.

Coastal Morning Lead · 5 colors

Lead #3BCDDA Accent #A6C4BE Surface #DFDABE Secondary #9AA0A0 Anchor #1D3549

Lagoon Blue opens this coastal palette with sea-glass and warm sand alongside it, grounded by driftwood grey and a deep-navy anchor.

Nordic Calm Accent · 5 colors

Accent #3BCDDA Secondary #AEB4B8 Surface #F1F2F0 Support #7A94A5 Anchor #2E3236

Lagoon Blue keeps this Nordic scheme quiet — cool greys and a soft white around it, a muted-blue support and a charcoal anchor.

Tech Product Signal · 5 colors

Signal #3BCDDA Surface #14161A Highlight #F4F6F8 Secondary #596671 Accent #7DF3FE

Lagoon Blue is the vivid signal in this product UI — on a near-black surface with cool white, a slate grey and a lighter tint of Lagoon Blue.

Minimal Editorial Surface · 5 colors

Surface #F6F4EF Accent #3BCDDA Secondary #C5EDF1 Support #979286 Ink #16140F

Lagoon Blue is the single accent in this high-contrast editorial system — set on near-white paper against near-black ink, with a warm grey and a desaturated tint of Lagoon Blue carrying the quiet middle.

Modern Café Dominant · 5 colors

Dominant #3BCDDA Anchor #372C1D Surface #EBE5D0 Accent #7F9D73 Secondary #3A3933

Lagoon Blue anchors this café scheme as the warm mid-tone, lifted by latte cream and a muted sage accent and grounded by espresso brown and a warm charcoal.

Build a working theme in the generator →

Color Lab

How #3BCDDA actually behaves in design work — read from its OKLCH lightness, chroma and hue, not just its raw numbers. Ten signals to help you decide where this color earns its place.

Warmth 18/100

Cool

Reads cool and recessive — calming, technical, good for trust-led UI.

Softness 61/100

High

Middle-weight — neither delicate nor heavy.

Depth 22/100

Low

Airy and open — recedes, leaves the composition light.

Naturalness 8/100

Very low

Reads engineered rather than organic — synthetic, digital.

Vintage feel 34/100

Low

A faint retro warmth without tipping into sepia.

Luxury 30/100

Low

Understated — leans refined without going austere.

Brand distinctiveness 46/100

Moderate

Recognisable but shares space with nearby hues.

UI accent fit 34/100

Low

Workable accent with care around contrast.

Surface fit 43/100

Moderate

Usable as a tinted surface in measured doses.

Print safety 68/100

High

Prints close, with a slight loss of vibrancy.

Pairs with #3BCDDA

For UI

For branding

For interior

For fashion

People also use #3BCDDA with

Medium Aquamarine Royal Blue Vermilion Platinum Dark Slate Gray

UI roles & guardrails

Primary action Safe as a filled button with near-black label. AAA

Body text Do not use for body copy on light surfaces. Avoid

Large display Only on dark surfaces. Avoid

Background Pair with #141310 text at 9.7:1. Use

Subtle surface Use #DCF1F3 for cards and hover fills. Tint 80

Avoid beside #3A97D9 — the hue gap is too small to read as intentional. Clash

In real applications

Not a swatch to memorise — a color to build with. Here is #3BCDDA at work across the surfaces designers actually ship.

Website / UI

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Dashboard

Revenue

$48.2k ▲ 12%

Brand

AVELINE

Studio

Poster

Nov 14 · 8PM

NIGHT
MARKET

Packaging

BLOOM

Botanical Wash

250 ml

Interior

Every model

Export

:root {
  --color-base: #3BCDDA;
  --color-base-rgb: 59 205 218;
  --color-base-oklch: oklch(77.9% 0.120 203.9);
  --color-50: #F2FCFD;
  --color-100: #DCF7F9;
  --color-200: #BBEDF2;
  --color-300: #8CDCE3;
  --color-400: #61C8D1;
  --color-500: #3FACB6;
  --color-600: #37848B;
  --color-700: #2C5E63;
  --color-800: #203E41;
  --color-900: #152628;
  --color-on-base: #141310;
}

// tailwind.config.js
colors: {
  lagoon-blue: {
    50: '#F2FCFD',
    100: '#DCF7F9',
    200: '#BBEDF2',
    300: '#8CDCE3',
    400: '#61C8D1',
    500: '#3FACB6',
    600: '#37848B',
    700: '#2C5E63',
    800: '#203E41',
    900: '#152628',
  },
}

$base: #3BCDDA;
$base-ink: #141310;
$base-50: #F2FCFD;
$base-100: #DCF7F9;
$base-200: #BBEDF2;
$base-300: #8CDCE3;
$base-400: #61C8D1;
$base-500: #3FACB6;
$base-600: #37848B;
$base-700: #2C5E63;
$base-800: #203E41;
$base-900: #152628;
$base-hover: #23ADB9;
$base-subtle: #CAEBEE;

{
    "color": {
        "base": {
            "value": "#3BCDDA",
            "type": "color"
        },
        "onBase": {
            "value": "#141310",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F2FCFD",
                "type": "color"
            },
            "100": {
                "value": "#DCF7F9",
                "type": "color"
            },
            "200": {
                "value": "#BBEDF2",
                "type": "color"
            },
            "300": {
                "value": "#8CDCE3",
                "type": "color"
            },
            "400": {
                "value": "#61C8D1",
                "type": "color"
            },
            "500": {
                "value": "#3FACB6",
                "type": "color"
            },
            "600": {
                "value": "#37848B",
                "type": "color"
            },
            "700": {
                "value": "#2C5E63",
                "type": "color"
            },
            "800": {
                "value": "#203E41",
                "type": "color"
            },
            "900": {
                "value": "#152628",
                "type": "color"
            }
        }
    }
}